Thrust ball bearings in the operation check is very important, cannot be ignored, mainly check the lubrication of rolling bearing noise, vibration, temperature, status, and so on. We will briefly introduce the sound of rolling bearing, ball size of the acoustic sound and quality check measurement should be used to check the operation of cars bearing, using advanced tools and accurate judgement of the situation here, INA bearings even with minor injuries such as split, also is making an abnormal sound and irregular sound, with acoustic measurement can tell.
Then thrust ball bearing vibration checks, is sensitive to see bearing damage, spalling, indentation, rust, cracks, wear and so on would be reflected in bearing vibration measurement, therefore, through the use of special automobile bearing vibration measuring device (frequency Analyzer) measurement of vibration in size, by frequency of abnormal circumstances cannot be inferred. But each machine measured values for bearings, such as conditions of use or the sensor installation location differs and therefore require prior to analysis and comparison of the measurements on each machine after the judging criteria.
Detection Shi, first to thrust ball bearing cover open, selection appropriate diameter of wire, will its stopped into 15~40 mm long of small paragraph, placed in axis neck Shang and the upper and lower bearing points interface Department, cover Shang bearing cover, by provides torque screwed tight fixed bolt, then in screwed pine bolt, remove bearing cover, with micrometer detection pressure flat of wire thickness, seeking out INA bearing top clearance of average. If the gap is too small, capable of integrating in the upper and lower Watts put mats on the surface. If it is too large, scraping down the pad, the Institute or pouring again w.
Bush tight force of adjustment: to prevent Bush in work process in the may occurred of turn and axis to mobile, apart from tie had ying and ended dynamic parts outside, Bush also must with INA bearing cover to pressure tight, measurement method and measuring top gap method as, measured soft wire thickness outside, available calculation out Bush tight force (with Bush compression Hou of elastic deformation volume to said)
General bearing clamping force 0.02~0.04 mm. If the clamping force is not compliant, you can increase or decrease thrust ball bearing and the bearing seat gasket thickness by the land Department to adjust, back not to add cushions.
Thrust ball bearings in addition to guarantee other than the radial clearance, you should also guarantee the axial clearance. Axial clearance is detected, the axis moves to an extreme position, and then with a feeler or dial gauge measurement axis from one extreme position to another location of the play that is the axial clearance.
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